Addresses
32,768
32.8K
Sub-ranges
11+
within this block
PTR Density
0.0%
0 of 32.8K IPs have PTR
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
62/100
Moderate
How this score is built
- Baseline (neutral) 65
- Recently allocated (1y) −3
- Trust score 62 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Ranges inside 166.254.128.0/17
| CIDR | IPs | Organization | ASN | Country |
|---|---|---|---|---|
| 166.254.192.0/18 | 16.4K | Verizon Business | AS6167 | US |
| 166.254.224.0/19 | 8.2K | Verizon Business | AS6167 | US |
| 166.254.128.0/19 | 8.2K | Verizon Business | AS6167 | US |
| 166.254.160.0/19 | 8.2K | Verizon Business | AS6167 | US |
| 166.254.192.0/19 | 8.2K | Verizon Business | AS6167 | US |
| 166.254.208.0/20 | 4.1K | Verizon Business | AS6167 | US |
| 166.254.192.0/20 | 4.1K | Verizon Business | AS6167 | US |
| 166.254.176.0/20 | 4.1K | Verizon Business | AS6167 | US |
| 166.254.160.0/20 | 4.1K | Verizon Business | AS6167 | US |
| 166.254.144.0/20 | 4.1K | Verizon Business | AS6167 | US |
| 166.254.128.0/20 | 4.1K | Verizon Business | AS6167 | US |
Geolocation
First 256 of 32,768 IP addresses in 166.254.128.0/17
166.254.128.0
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+ 32.5K more (range too large to list inline)
BGP Routing
Live BGP anomalies →This block is announced in BGP, observed across our RIPE RIS collectors.
Announced prefix
Origin AS
Announcement samples
3,840
Last seen
2026-07-23 19:18:58
Frequently Asked Questions
What is 166.254.128.0/17?
166.254.128.0/17 is a CIDR network block containing 32,768 IPv4 addresses (from 166.254.128.0 to 166.254.255.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.
Who owns the 166.254.128.0/17 network?
The 166.254.128.0/17 range is allocated to Verizon Business and announced via AS6167 from United States.
Last updated: 2026-07-23 19:25:31 UTC
